Another brain teaser for logic puzzle fans. Fill the grid provided with a mixture of charged magnets and neutral dominoes. Check the clues around the grid to get the correct number of positive and negative poles in each row/column.
This version of the game supports 8 modes of play on iPhone, iPod Touch & iPad; plus GameCenter integration, so you can beat your friends' best times. Oh...and the puzzles are auto generated...so no in-app-purchases are necessary!